Garmin Flight Deck 100 User Manual

Page of 688
190-00728-04  Rev. A
Embraer Prodigy
®
 Flight Deck 100 Pilot’s Guide
136
AUDIO PANEL AND CNS
AUTOMATIC SQUELCH
Automatic Squelch quiets unwanted static noise when no audio signal is received, while still providing good 
sensitivity to weak COM signals.  To disable Automatic Squelch, press the VOL/SQ Knob.  When Automatic 
Squelch is disabled, COM audio reception is always on.  Continuous static noise is heard over the headsets and 
speaker, if selected.  Pressing the VOL/SQ Knob again enables Automatic Squelch.
When Automatic Squelch is disabled, a white SQ appears next to the COM frequency.
Figure 4-15  Overriding Automatic Squelch
Squelch 
Indication
Press the COM
 VOL/
SQ
 Knob to turn off 
Automatic  Squelch.  
Press again to restore 
Automatic Squelch.
VOLUME
COM radio volume level can be adjusted from 0 to 100% using the VOL/SQ Knob.  Turning the knob 
clockwise increases volume, turning the knob counterclockwise decreases volume.  When adjusting volume, 
the level is displayed in place of the standby frequencies. Volume level indication remains for two seconds after
the change.
Figure 4-16  COM Volume Level
COM Volume 
Level Remains for 
Two Seconds